AN3256

Conducted EMI

Doc ID 17790 Rev 1

17/23

8

Conducted EMI

Traces shown below are the maximum of 3 successive sweeps (max hold), peak values.

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Red = line 1

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Blue = line 2

Figure 23.

Some work remains to be done. The input EMI choke L1 is too small. Damping resistors

across the choke should help at its parallel self-resonance.